chromium/third_party/blink/web_tests/fast/css/css-escaped-identifier-crash.html

<html>
<head>
    <style>foo { D\\\\\$\eeeeeeeeeee\\\\\\\\\\\\\\\\\\ }</style>
    <script>
        if (window.testRunner)
            testRunner.dumpAsText();
    </script>
</head>
<body>
    <p>
        Test for crash discovered with escapes in CSS identifiers.  If this text appears, the test passed.
    </p>
</body>
</html>